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7208 CD/P4A Super Precision Single Row Angular Contact Ball Bearing
7208 CD/P4A 40×80×18 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
Super-precision, high-capacity, single row angular contact ball bearing. The 7208 CD/P4A bearing, with a bore diameter of 40 mm, outside diameter of 80 mm, and width of 18 mm, features precise dimensions, high static load capacity, and is manufactured to the P4A precision grade. This bearing delivers superior performance and reliability, making it ideal for applications that require high rotational accuracy and stability.
Technical Specifications
Part Number
7208 CD/P4A
Bearing Type
Angular Contact
Measurement Unit
Metric
Dimensions
Inner Bore Diameter (d): 40 mm
Inner Bore Diameter Tolerance: -0.006mm to 0
Outer Bore Diameter (D): 80 mm
Outer Bore Diameter Tolerance: -0.007mm to 0
Width (B): 18 mm
Width Tolerance: -0.2mm to 0
Specifications
Contact Angle: 15° (25°, 40° Available)
Material: Chrome Steel
Cage Material: Phenolic
Number of Rows: 1 Single Row
Seal Type: Open
Temperature Range: -30°C to 150°C
Lubrication: Oil or Grease
Tolerance Class: P4A better than P4 (ABEC-7)
Weight: 0.37 kg
Matched Arrangement: No
Universal Matching Bearing: No
Preload: Not applicable
Load and Speed
Dynamic Radial Load: 33,800 N
Static Radial Load: 24,000 N
Reference Speed For Grease: 18,000 rpm
Limiting Speed For Oil: 30,000 rpm
Performance Features of 7208 CD/P4A Bearing
The 7208 CD/P4A angular contact ball bearing is manufactured to P4A precision grade standards and excels in high-precision and high-performance applications. It handles both radial and axial loads simultaneously, supports high-speed operation with stability, minimizes torque and friction for energy efficiency, and offers enhanced rigidity for accuracy under heavy loads. Built with hybrid ceramic balls, this durable bearing ensures extended service life and effective performance across a wide temperature range, making it ideal for applications requiring superior rotational accuracy and reliability.
Applications of the 7208 CD/P4A Bearing
The 7208 CD/P4A high-precision angular contact ball bearing is designed for high-speed and high-accuracy applications, making it ideal for precision machine tools, industrial machinery, and transport equipment, as well as specialized devices requiring smooth operation like medical and aerospace instruments. Featuring a 15° contact angle, it supports moderate radial and axial loads and operates efficiently at speeds up to 18,000 rpm (or 30,000 rpm with oil-air lubrication). Made from bearing steel with a P4A precision grade, it offers tight tolerances and can be paired or preloaded in various configurations to suit different operational needs. Its robust design and material properties also make it suitable for high-temperature environments and heavy industries, ensuring reliable performance and extended lifespan across a wide range of demanding applications.
Certifications & Services
CERTIFICATE
RoHS & REACH, IATF16949:2016
Feature
High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Beining Intelligent Technology
Precision Bearings for High-Performance Industries
At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in:
CNC Machine Tool Spindles
Robotics
Motors
With a focus on quality, automation, and efficiency, we serv...
Beining Intelligent Technology
Precision Bearings for High-Performance Industries
At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in:
CNC Machine Tool Spindles
Robotics
Motors
With a focus on quality, automation, and efficiency, we serv...
